Callback url apps.dev.microsoft.com ?

[rjgmail88]

I have create an app on https://apps.dev.microsoft.com/ for MS graph access and getting users authenticated to AADv2. I have a bot running on node.js where I'm configuring following
const AZUREAD_APP_ID = "xx"
const AZUREAD_APP_PASSWORD = "xx"
const AZUREAD_APP_REALM = "common"

using passport-azure-ad, to configure rest if the things. I would like to know what will be value of Redirect URL on apps.dev.microsoft.com.
Azure Bot app service endpoint ? or something else ?